document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1017200>Question 1017200</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How much 12% acid must be added to 2 gallons of pure water to get a mixture that is 7%. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #633542 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=633542\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> How much 12% acid must be added to 2 gallons <BR>\n" );
document.write( "of pure water to get a mixture that is 7%.<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Equation::<BR>\n" );
document.write( "acid + acid = acid<BR>\n" );
document.write( "0*2 + 0.12x = 0.07(2+x)<BR>\n" );
document.write( "------<BR>\n" );
document.write( "0.12x = 0.14 + 0.07x<BR>\n" );
document.write( "------<BR>\n" );
document.write( "0.05x = 0.14<BR>\n" );
document.write( "------<BR>\n" );
document.write( "x = 14/5<BR>\n" );
document.write( "x = 2.8 gallons (amt. of 12% solution to add)<BR>\n" );
document.write( "----------------<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "------------  </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );